I think the calbe grommets on the TT are more distinctive than the seat cluster or the BB shell. Do the ax shift lever use that unique Shimano boss (round with tab) or the more common style? Easiest way to tell if SW threaded just remove the crank arm and read the stamp on the cups, BUT IIRC if it's an ax BB unit not sure if Shimano ever made those in SW threads, check on velobase.